Clinker grinder



R. S. RILEY.

CLINKER GRINDER.

Jail. 2, 192s.

FILED `JUNE 5 1920.

3 SHEETS SHEET 2.

R S RILEY CLINKER GRINDER.

FILED JUNE 5.1920` Jan. 2, 1923.

l. Il P L E E J NN E R. S. RILEY.

CLINKER GRINDER.

Jan. 2, 1923.

3 SHEETS-SHEET 3.

FILED JUNE 5,1920.

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dan. 2,

ROBERT SANFORD RLEY,`OE` 'i/VRCESTER, lVJfiSSAGl-USETTS, ASSGNORTO'SNFORD To all 'whom t may concern.'

Be it known that l,- `Roemer S. RILEY, a citizen of the United States,residing at llorcester, in the county or Ti/Yorcester and State ofMassachusetts, have invented a new and useful @linker Grinder,v of whichthe following is a specification.

This invention relates to furnace construction and more particularly toan improved clinker grinder and parts associated therewith. f

As'furnace operation becomes increasingly automatic, it becomesdesirable to make provision for breaking up the clinkers and fuel refuseso that the same may be handled by a conveyor or other mechanical means.A heavy grinding roll, termed a clinker grinder, has been used for thispurpose, and it is one object of my present invention to improve theconstruction ot such rolls, making them more eiiicient in operation andmore economical to inanufacture.

Another objectof my invention is to provide a removable and renewablewear plate adapted to be secured to the rear wall of the furnaceadjacent the clinlrer grinder, thus rendering frequent renewal or thewall unnecessary.

My invention further relates to arrangements and combinations of partshereinalter described and more particularly pointed out vin the appendedclaims.

The preferred toi-n1 of my invention shown in the jlrawings, in which---.il 1 is a sectional side elevation olf a portion ot a furnace ol theunder-Literal type een bodying my invention;

Fig. 2 is an enlarged transverse sectional elevation of the c linkergrinder:

Fig. 3 is a plan view of a portion oic the clinker grinder. looking inthe direction of the arrow 3 in Fig. 2;

Figs. l and 5 are longitudinal sectional views of the clinker grinder,taken along the lines l-Ll and 5 5 in Fig. 2;

Fig. 6 is a front elevation of portion of the clinker grinder7 showingone of the bearings in section;

Fig. 7 is a transverse sectional elevation of a clinlrer grinderembodying a modified construction; and

'Fg'. S is a detail plan View, looking in the direction of the arrow 8in lfig'. T.

assi/renner e GRNDER.

1920. Serial No. 386,846.

Referring to the drawings, l have shown a portion of a furnacecomprising a rear wall 10, a portion oit an underfeed retort 1 1, and arefuse discharge plate l2. The plate 12 is pivoted at i3 to the rear endont the retort section 11 and is supported at its ylower end by a roll1a' mounted at the end of a rack bar 15 which may be manually adjustedto position the discharge plate 12 at any desired distance from theclinker grinder 16.

The discharge plate and the portion ot the retort to which it isattached are commonly reciprocated by driving mechanism not shown.

are preferably disposed in the angular relation indicated' in Fig. 2.rllhe plates 18 are recessed so that the nuts 21 on the bolts 19 aresubstantially below the outer surface of the plates.

Each plate is provided with openings enlarged at their inner ends andadapted to receive grinding teeth 22 having heads 23 aty their innerends.

ln assen'ibling the clinker grinder, teeth are inserted in the openingsVtroni concave .side ol" the plate and the heads are received in theenlarged inner ends or" the openings. The plates are then clamped inpairs about vthe tube 17 and the grinding teeth are thus held firmly inposition between the plates and the tube. `When the teeth become worn orbroken the plates are easily removed and the teeth may be quicklyreplaced at small expense.

l prefer to make the plates 18 in short sections, such as are shown in3, using as many sections as necessary to build up a roll of thedesiredV length. Suitable bearings 2li (Figs. 1 and 6) areprovided atsuch the th e points as are necessary to nrmly support the grinder.

'The hollow construction ot the clinker nder is desirable for severalreasons as it permits the circulation of' air or water CGRORATON 0FMASSA- provided the wear' plate 25` shownf in g. 1. This plate ispreferably inadeinrelatively short sections and is provided with lugs orprojections 26 at its rear side adaptedto engage hooks or similarMfastening devices-27 iixedl in the wall l0.

At its lower end, each plate 25 is formed to engage the Alower Vportionof an'V I-beain 28 which supports the rea-r ends ot the bearings 24J.lThe plates 25 may' be `secured to the beam 28 in any convenient manneras by bolts 293 loosely dropped into suitable openingsin the plate andin the flange oli` the beam.

n Figs; 7 and 8 have indicated a slight modification in which thev rods'30 are pro?- vided with transverse openings 3l at` each end throughwhich keys 32' may be driven.-

to hold the casingl plates in position. The keys should? be inserted.`as shown ini. Fig. "7 so that the actionof the grinder against thematerial upon which. it' operates will tend tio-'seat the keys morefirmly in the openings' 31. The thin-endet eachke'y may beslotted andtheends separated as shown in Fig. 8 for additional security.

Having thus described my invention and'.

a modification thereof, it will bev evident that otherchanges/and.modifications can be madetherein within the spirit. andscope ot:

' myl inventionasy setlifoith in the claims, and 'I do not wish to beotherwise limited to the details herein disclosed, but Awhat l claim 1.A clinker grinder comprising av hollow cylindrical tube,l a plurality:oi' sectional cas-y y ing` plates dispose'dabout said tube and pro;vided" with grinding teeth, and fastening rods eachy extending directlythrough the `wall of said tube at two yseparated points and` througheach of a pair of plates and securing said plates to 4said tube.

2. A @linker grinder comprising a hollow cylindrical tube, a pluralityof sectional casing plates disposed about saidltube .and pro. l

vided. with grinding teeth, and, means'uto secure said plates to 'saidtube,.sai'd means comprising fastening rods each Vextendingsubstantially diametrically throughopenings inj said plates and throughthe wall ot said tube at two separated points. 3. A clinkergrinder-comprising' a hollow' cylindrical tube, semi-cylindrical. casingplates disposed inv pairs about said tube andi provided with grinding:teeth, and means to secure said plates Ito said:y tube, saidmeanscomprising bolts each extending subst-an'- tially diametricallythrough` openings in y said`r plates and in opposedr walljportion'siofsaid tubes.

4;. A. clinker grinder comprisingai hollow cylindrical tube, sectionalvcasing plates dise4 posed about said tube and providedl withgrindingteeth, fastening. nods: each; extend-- ing: dianietricallythrough said plates and through the opposed wall portionsof saidV tubeat separated points along thel axiscf said tube, and holding devices forsaidy rods 5. A clinler grinder comprising .a hollowf cylindrical tube,sectional casing 'plates'.dis

posed about said tube andi provided vwith grinding teeth, fastening.rods each extiending through. said plates and throughgsepas` rate wallportions of said tube-,anch holding vdevices clr said rods,.the'rod'sholding each pair of plates extending substantially along diameters ofsaid tube and at a substantial3 angle to each other. s i i' '6. A.clinker grinder comprising aT hollowK cylindrical tube,` sectionalcasing plates disposed'v about said tube.. andr .provided with grinding:teeth, and .means topsecure saidv plates to said tube, vsaid meanscomprisingI` rods each extending' through said-[platesaiid throughseparate wall portionsot said tube,. and keys disposed transversely insaid-rods outside saidplates. n

ln testimony whereof I have hereunto aiiXed my signature; ROBERT SANFORERILEY.

